Hi,
I just brought this Kindle and was wondering if you can advise me on how to view PNG files. Jpg files works by just zipping it and placing it in the "picture" folder but for some reason PNG files don't show up. I've tried creating a sub-folder named "screensaver" and placing the PNG files in that folder, I see the name of the file but when I tried to open it, I get an error that states "Archieve does not contain any pictures."

Kindly assist.

Thank you so much

If viewing .PNG's doesn't work, you could also convert the PNG to JPG.
I use a handy tool called Irfanview (irfanview.com) for this.

Is there a jailbreak for the kindle 4.01 yet? I'd like to put some custom screen savers on it.

Yes. It is built-in. ENABLE_DIAGS. Enable USBnet. SSH. Put what you want where you want. If you want kindlets from the developer's corner, put the jailbreak key on it. Whatever. Read the threads and the wiki. For that matter, read the posts on this page of this thread, just above your post. I mean, really now, are you just trolling, or what?